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Record W3082662986 · doi:10.2136/sssabookser5.4.c30

3.4.1 Introduction

2002· book-chapter· en· W3082662986 on OpenAlexaff
Reynolds W. D, Elrick D. E, Youngs E. G, Aziz Amoozegar, Booltink H. W. G, J. Bouma

Bibliographic record

VenueSoil Science Society of America book series · 2002
Typebook-chapter
Languageen
FieldEngineering
TopicSoil and Unsaturated Flow
Canadian institutionsUniversity of GuelphAgriculture and Agri-Food Canada
Fundersnot available
KeywordsHydraulic conductivitySorptivityCapillary actionSoil waterCapillary pressureWettingSoil scienceWater flowPorous mediumGeotechnical engineeringMaterials scienceEnvironmental sciencePorosityGeologyComposite material

Abstract

fetched live from OpenAlex

Saturated and field-saturated water flow parameters describe or quantify the ability of a porous medium to transmit water when the porous medium is saturated or nearly saturated. This chapter discusses various parameters that include saturated and field-saturated hydraulic conductivity, matric flux potential, the macroscopic capillary length parameter, the effective Green–Ampt wetting front pressure head, and sorptivity. It provides information on the air-entry and water-entry pressure heads. Agricultural soils often exhibit extensive spatial and temporal changes in pore characteristics due to changes in soil texture, structure, horizonation, root growth, faunal burrowing, freeze–thaw action, and other processes. As a result, saturated and field-saturated water flow parameters tend to be highly variable, with coefficients of variation as high as 400% or more, and statistical distributions that are often highly skewed.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.102
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.003
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.184
Teacher spread0.177 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designNot applicable
Domainnot available
GenreOther

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations7
Published2002
Admission routes1
Has abstractyes

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